Vaccination and Immunity

N95 respirators are recommended for preventing the spread of H1N1 (swine flu) as they filter out at least 95% of airborne particles. The other options (N007, W580i, SN59) are not standard mask designations - they appear to be nonsensical or made-up codes designed to test if you know the correct terminology.

N95 respirators are the standard masks used to prevent the spread of H1N1 influenza virus. The '95' indicates they filter 95% of airborne particles. Options like 'N007', 'W585i', and 'SN59' are not real mask designations and appear to be garbled text.

N95 masks are specifically designed to filter at least 95% of airborne particles and are recommended for preventing H1N1 influenza transmission. The other options (N007, W585i, SN59) are not standard respirator designations.

N95 masks are specifically designed to filter at least 95% of airborne particles and are recommended for preventing H1N1 influenza transmission. The other options (N007, W585i, SN59) are not standard respirator designations.

N95 respirator masks are designed to filter at least 95% of airborne particles and are commonly used to prevent the spread of respiratory infections like H1N1 influenza.

The N95 respirator mask filters at least 95% of airborne particles and is recommended by health organizations during influenza outbreaks including H1N1. The number indicates filtration efficiency (95%). Options A, B, and C are fictitious codes designed to look similar to the correct answer.

The N95 respirator mask filters at least 95% of airborne particles and is recommended by health organizations during influenza outbreaks including H1N1. The number indicates filtration efficiency (95%). Options A, B, and C are fictitious codes designed to look similar to the correct answer.

N95 refers to the mask's filtration efficiency - it filters at least 95% of airborne particles 0.3 microns or larger. The 'N' stands for 'Not resistant to oil'. This is an established NIOSH (National Institute for Occupational Safety and Health) rating system, not a nickname, codename, or person's name.

BCG (Bacillus Calmette-Guérin) is the vaccine used to prevent tuberculosis. It contains weakened strain of bovine tuberculosis bacteria. Salk vaccine is for polio, and rubella vaccine prevents rubella (German measles).

Tamiflu (oseltamivir) is an antiviral medication used to treat influenza symptoms after infection occurs, not a vaccine that prevents infection. Vaccines work by stimulating your immune system to produce antibodies before exposure to a virus, while Tamiflu inhibits the virus from spreading in your body after you're already sick. The statement confuses treatment with prevention.

As of the knowledge context when this question was framed, the WHO had not established a specific timeline for swine flu vaccine availability. Option C (Not known) reflects this uncertainty at the time.

Prophylaxis refers to preventive treatment or measures taken to prevent diseases or health conditions before they occur. Examples include vaccination, malaria prophylaxis, antibiotics before surgery, etc. It is not specifically about keeping microorganisms from food, diet control, or booster prescriptions.

'Vaccinations' is the correct spelling. The word follows the pattern: vac-CIN-ations with double 'c' and single 'n'. Options A and B incorrectly have double 'n', while option C is missing the second 'c' and 'n'.

Albert Sabin developed the oral polio vaccine (OPV) which can be taken by mouth as drops. This live attenuated vaccine was licensed in 1962 and became widely used globally. Jonas Salk developed the earlier injectable inactivated polio vaccine (IPV) in 1955. Edward Jenner developed the smallpox vaccine, and Selman Waksman discovered streptomycin.